<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title></title>
  </head>
  <body>
    <h1>hello my index</h1>
    <script src="/socket.io/socket.io.js" charset="utf-8"></script>
    <script src="/vue.js" charset="utf-8"></script>
    <script type="text/javascript">
      var socket = io();
      console.log(socket);
    </script>
  </body>
</html>
